Yaskawa YASNAC PC NC I/O Signal Function Manual User Manual
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YASNAC PCNC I/O Signal Function Manual Chapter 9: Automatic Support Functions
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An external tool number address is selected ny the two bits of external data select (EDSA
and EDSB).
EDSA = 0, EDSB = 1 Tool length offset
EDSA = 1, EDSB = 1 Tool radius offset
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If no offset number has been selected (H00/D00), the completion signal is output without
offset data corrected.
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After the correction of the offset data by the external input, the new offset data becomes
valid from the newly read block after the correction in the case of tool length offset
(G43,G44) mode and tool radius offset (G41,G42) mode. In the case of tool position offset
A (G45 to G48) mode, the new offset data becomes valid when the G code calling this
mode is specified next.
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In the external tool offset designation, it is not necessary to designate the axis selection
inputs EDAS0 and EDAS1. They are ignored even if designated.
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The offset data corrected by the external input data are equivalent to the offset data cor-
rected by the MDI operation.
3. External workpiece coordinate systems
The shift data corrected by the external input data are equivalent to the shift data corrected by
the MDI operation.The externally input shift data is added to the present shift data for all of
G54 to G59 workpiece coordinate systems.